Brush attachment for floor treating machines



Nov. 3, 1931. G. JOHNSON 1,330,362

I BRUSH ATTACHMENT. FOR FLOOR TREATING MACHINES Filed Jan. 15, 1930 2 Sheets-Sheet 1 Nov. 3,1931. G. l JO'HNSON 1,830,362

BRUSH ATTACHMENT FOR moon TREATING MACHINES Filed Jan. 15, 1930 '2 Sheets-Sheet 2 7 GUSTAF rrzronnsomormunnngnnssncnusnrrs, AssIeNoRmo AUTOMATIQIELOQR WAXING MACHINE coRr ATI m oF-MAL EN; M ssAcnUsnrTs, a conronn'rron --0r MASSACHUSETTS I '1 f'nRUsH nr'rnenmniwron meg .rn'nnrme uncmnns' present invention relates to floor treatl ,ing machines, and 1 more particularly" to a novel and improved. brush attachment, or

. means; for attaching brushes, therefore;

Floor treat'ing machines, and particularly waxing or polishing mach 1nes, ut1l1z1ng a 7 brush as] the waxing. or polishing medium,

and also utilizing powerto operate thebr ush,

are ofcon'siderable weight;

' An' important 'object;. of my-invention, -therefore,-isthe provision-of abru'sh attach 'ment for machines of" this type which will enablethe operator to attach the brush to the machine without using-his hands, in a simple and rapid manner. v y 7 Another object of the invention is the mo vision of attaching means whichrwill permit the instant detachment of the brush from the I machine, without the use of tools or of loosening or adjusting any parts.

My invention enables an operator to shift from one type of brush or floor treating device to another with a minimum oftime and 3 effort, and without even bending over to touch the brush.

These advantages be readily apparent to, and appreciated by. operators of these machines and others skilled in the art.

Other features and objects of the inven tion reside in the particular construction and arrangement of parts thereof. The above and other objects and features of the invention will be hereinafter more fully pointed out, described and claimed Referringto the drawings, illustrating a preferred embodiment of the invention,

7 Fig. 1 is a side elevation, partly in section,

of a floor treating machine utilizing my novel brush attachment:

. Fig. 2 is a cross sectional view on the line 2+2'of Fig. 1;

Fig. 3 is an enlarged fragmentary detail of one of the attaching devices ,1

Fig. 4 is a side elevation partly in. section,

illustrating my invention utilized with a larger brush;

Fig. 5 is a cross sectional view'on the line i J 5 5 of Fig. 4; and

Fig. 6 is anenlarged fragmentary detail from. the lugs awai an filed as," 15,1936. [serial No. 420,975.

ofone of theattaching devices positioned to plate ,at predetermined intervals, are a p lu' rality of bosses 8, each provided, at. the sides Y thereof, with lugs 9.. Between each [pair of sa1dllugsis positioned a plate 10 projecting beyond the boss 8 atoneend thereofland .be-

ing secured to said boss by'a screw ll, or other 8 suitable and preferably removablejattaching d e- I Formedon the plate 7 is an annular shoulder 12, and adapted to ride on said shoulder is a flat ring "13 having a central flange 14 to provide abearing for saidring 13' on the boss 15, ofltheplate 7. Projecting fromthe ring 113 are a pluralityoftongues16 one loflthese tonguesbeing provided for each boss 8 on the plate' 7. "Projecting, from the. outer edge of eachj tongue. anddep'ending below the sur- ,face ofsaid tongue is a bosslZ, to'which a brush frame or back 18 is adapted tobeafiixed by screws 19 or other holding devices, tufts ofj bristles QO'being attached .tosaid brush frame 18. .7 When it is desiredito'attach the brush to a machine, the brush maybe placed on the floor,

bristlesdownjfand the machine placed over the brush. the plates 1O projecting inwardly ,8 and being positioned inter mediate the tongues 16! Thereupon the motor may started and instantly stopped. This will cause a rotation of the plate 7, and will strike against injposition. ready for operation andif the machine should inadvertently be lifted. the tongues 16 will ride on the inwardly projecting plates 10, and be supported thereby.

having thereon ajdriving causethe plates, 10 toride over the tongues 16 untilthe bosses 17 ,thebosses 8 on the'plate7; The brush is then I Thereafter, when power is imparted to the gear and plate 7 thebosses'B, on said plate 7, Will be in engagementwith the bosses 17 on thetongues 16, and will thus rotate the ring 13 withthe plate 7'; l Thezbrush back 18 being fixed to the bosses 17 will likewise be rotated therewith, in the direction of the arrow 21 in Fig. 2. Whenthe operator desires to releaseiand remove 'the'brush,'.to be replaced by another, orfor any otherpurpose,. he may simply kick the-brush out of engagev ment with its locks, and transfer the machine to another brush, or-lrick another brushunder the machine forattach t i ptherumanner above described. 7 I

' It. will be noted thattheend 26 0f the plate well as the'side Z'Z adja'cent to said end 26, is beveled, to facilitate riding of the locking plates over the tongues 16.

If it is desired to 'utllizealarger brush, such, for example, asbrush back in Fig. 41, the plates 10 will be reversed, by simply removing the screw 11, reversing the plate 10 to theposition illustrated in Fig. 6, and'again replacing and'tighteningsaidscrewll, When the larger brushes 25 are utilized, a

V difi'erent type ofretainer-is also;utilized, as illustrated in Figs. 5' and 6. Inthis form of 7 brush attachment, one which is economical to construct, easy to change or reverse, and

since I believe that these brush attachments are novel, I have claimed the sameherein.

, While Ihave necessarilydescribed my present invention somewhat in detail, it will be appreciated that I mayvary the size, shape andarrangement of partswithin reasonably wide limits Without departingfrom'the spirit of theinventionr, V I 7 7 My invention is further described and defined in the form of claim as follows brush attachment of the kind described, 7

comprising a plate, a plurality of bosses on the lower faceof said plate, a pair of-lugs on each of said bosses, alocking plate'attached'to each of said bosses between said lugs andprojecting b eyondfonei end of said 1 boss, adisc located below said plate, a plural ity of tongues on. said disc adapted to be pos'itioned between said locking plates and's'aid first plate, and means on each of said ton ues adapted to be engaged by said bosses to e ect rotation of said disc with said first plate In testimonywhereof, I. have signed my name to'this'specification; I

GUSTAFIJOIINSON.

the invention, the ring 13 has the tongues 16 projecting'therefrom, but to a greater extent, each tongue having formed therein a recess-30,.to receivethe bosses 8 on theplate o 7. The plate 7 is also-provided with an anjnular sheulder.v .31, on its outer periphery, ring13restingv 'onthe' shoulder12 andthe tongues 16 resting on the shoulder 31., f The portion of each tongue 16, which is adapted to extend under theplate' 10, is beveled, as i shownat 32, to facilitate-the'sliding of said 7 tongues under said'plates:

Formed as a part of the framewhich comprisesthe ring 13 and tongue 16 is a ring 33,

which depends below thenorm'al level of the 1 z ring Fig. 4-:

13 and tongues 16,. as;.clearlv shown'in Thebrush back 25 is aflixedrto'the ion ring 33 as well asto the boss 34 ofhth e ring 13 by screws 35;,"or the like.- The ring 13 The method of attachmentand detachment ofthebrush'and holder illustrated in Figs. and 5. is the same as for that illustrated in Final and 2;. Themachine-is.placed onto the brush with the bossesS'ihteririediate the tongues 16,: whereupon slight'rotationof the plate 7 will cause the lugs 8 to enter the realso hasanannularflange 36 adapted to constitute abearing against boss 15 of theplate 7 5O 7 cesses 30 and .bear against the tonguesi16, the H beveled portions 32 of said. tongues extend ing under plates 10; ThabossesS, during I operation of'the'machinawill bear against.

the inner wall of the recesses 30, and rotate the frame and brush carried thereby with the plate 7-.] 4

Itwill thus be appreciated that Ihave devised an extremely, simple, and yet efficient 

